Technicolor - Thomson STUDIO CAMERA LDK 20(S) - Manual (Page 81)

Adjustments Technical Manual LDK 20(S) - Studio Camera 4-55
Audio/Intercom LF Board RTS MODE
Cameraman intercom microphone PL
1. Apply a 1kHz test signal at -64dBu to the cam. intercom mic. input of Audio/Intercom LF Board (X19A-25).
2. Adjust the cam. mic. preset potentiometer for a 1kHz signal at -10dBu on the microphone output pin of the
board.
Measure at: Adjust with: Required result:
X19B-13 ZR920 -10dBu
Tracker intercom microphone PL
3. Apply a 1kHz test signal at -64dBu to the tracker intercom mic. input of Audio/Intercom LF board (X19A-13).
4. Adjust the tracker mic. sidetone potentiometer for a 1kHz signal at -10dBu on the mic. output pin of the board.
Measure at: Adjust with: Required result:
X19B-13 ZR910 -10dBu
CH1 fork attenuation PROD
5. Apply a 1kHz test signal at -6dBu to the prod intercom input of Audio/Intercom LF board (X19B-28).
6. Adjust the fork attenuation level potentiometer for a 1kHz signal <-22dBu at the output pin of the board.
Measure at: Adjust with: Required result: Correct: Incorrect:
X19B-8 ZR990 <-22dBu
CH2 fork attenuation ENG
5. Apply a 1kHz test signal at -6dBu to the eng intercom input of Audio/Intercom LF board (X19B-30).
6. Adjust the fork attenuation level potentiometer for a 1kHz signal <-35dBu at the output pin of the board.
Measure at: Adjust with: Required result: Correct: Incorrect:
X19B-8 ZR970 <-35dBu
22. Switch off power. Return Audio/Intercom LF Board to its position in the camera.